Analysis

  • max time kernel
    96s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-10-2022 01:03

General

  • Target

    7f4a62d4627207505489a7b33bc6bc067cb55a55f883d54a337dbd3bde5bcf4f.exe

  • Size

    72KB

  • MD5

    0189d11fef56258412711436079fb236

  • SHA1

    a5e047bab2a836a7fbde9bc74712caa91fddee65

  • SHA256

    7f4a62d4627207505489a7b33bc6bc067cb55a55f883d54a337dbd3bde5bcf4f

  • SHA512

    10653dd1c044541e9cb985459556c61d39ae45ad597d398ea02ede4418c11887a5de0fd71fd5f3b714c252a72e7006b3cccc98e523e7362fd60ca082cb70d2b6

  • SSDEEP

    768:YkLyxhrNQ7/pkcJLXyzAEtSfPpf+drcAC8hhMOuSf+2ME9kv4FMLIWV2gXw:YyyF9MXUAasoQ8h2Zhak4SIWV2qw

Score
8/10

Malware Config

Signatures

  • Possible privilege escalation attempt 34 IoCs
  • Modifies file permissions 1 TTPs 34 IoCs
  • Drops file in System32 directory 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 16 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7f4a62d4627207505489a7b33bc6bc067cb55a55f883d54a337dbd3bde5bcf4f.exe
    "C:\Users\Admin\AppData\Local\Temp\7f4a62d4627207505489a7b33bc6bc067cb55a55f883d54a337dbd3bde5bcf4f.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4936
    • C:\Windows\SysWOW64\takeown.exe
      C:\Windows\system32\takeown.exe /f "C:\Windows\system32\skjc.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:4592
    • C:\Windows\SysWOW64\icacls.exe
      C:\Windows\system32\icacls.exe "C:\Windows\system32\skjc.exe" /grant SYSTEM:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:1872
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\System32\cmd.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:4548
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "C:\Windows\System32\cmd.exe" /grant SYSTEM:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:3100
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\System32\cmd.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:5004
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "C:\Windows\System32\cmd.exe" /grant SYSTEM:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:2696
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\System32\ftp.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:368
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "C:\Windows\System32\ftp.exe" /grant SYSTEM:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:3160
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\System32\ftp.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:1836
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "C:\Windows\System32\ftp.exe" /grant SYSTEM:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:4388
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\System32\wscript.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:4512
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "C:\Windows\System32\wscript.exe" /grant SYSTEM:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:4204
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\System32\wscript.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:2568
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "C:\Windows\System32\wscript.exe" /grant SYSTEM:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:2172
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\System32\cscript.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:1512
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "C:\Windows\System32\cscript.exe" /grant SYSTEM:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:4964
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\System32\cscript.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:1732
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "C:\Windows\System32\cscript.exe" /grant SYSTEM:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:4392
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\SysWOW64\cmd.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:2016
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "C:\Windows\SysWOW64\cmd.exe" /grant SYSTEM:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:3340
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\SysWOW64\cmd.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:2568
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "C:\Windows\SysWOW64\cmd.exe" /grant SYSTEM:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:4968
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\SysWOW64\ftp.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:1220
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "C:\Windows\SysWOW64\ftp.exe" /grant SYSTEM:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:2008
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\SysWOW64\ftp.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:1772
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "C:\Windows\SysWOW64\ftp.exe" /grant SYSTEM:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:2228
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\SysWOW64\wscript.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:628
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "C:\Windows\SysWOW64\wscript.exe" /grant SYSTEM:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:4716
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\SysWOW64\wscript.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:1684
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "C:\Windows\SysWOW64\wscript.exe" /grant SYSTEM:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:5020
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\SysWOW64\cscript.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:4788
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "C:\Windows\SysWOW64\cscript.exe" /grant SYSTEM:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:4192
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\SysWOW64\cscript.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:2952
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "C:\Windows\SysWOW64\cscript.exe" /grant SYSTEM:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:4292

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

File Permissions Modification

1
T1222

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\skjc.exe
    Filesize

    72KB

    MD5

    0189d11fef56258412711436079fb236

    SHA1

    a5e047bab2a836a7fbde9bc74712caa91fddee65

    SHA256

    7f4a62d4627207505489a7b33bc6bc067cb55a55f883d54a337dbd3bde5bcf4f

    SHA512

    10653dd1c044541e9cb985459556c61d39ae45ad597d398ea02ede4418c11887a5de0fd71fd5f3b714c252a72e7006b3cccc98e523e7362fd60ca082cb70d2b6

  • memory/368-141-0x0000000000000000-mapping.dmp
  • memory/628-161-0x0000000000000000-mapping.dmp
  • memory/1220-157-0x0000000000000000-mapping.dmp
  • memory/1512-149-0x0000000000000000-mapping.dmp
  • memory/1684-163-0x0000000000000000-mapping.dmp
  • memory/1732-151-0x0000000000000000-mapping.dmp
  • memory/1772-159-0x0000000000000000-mapping.dmp
  • memory/1836-143-0x0000000000000000-mapping.dmp
  • memory/1872-136-0x0000000000000000-mapping.dmp
  • memory/2008-158-0x0000000000000000-mapping.dmp
  • memory/2016-153-0x0000000000000000-mapping.dmp
  • memory/2172-148-0x0000000000000000-mapping.dmp
  • memory/2228-160-0x0000000000000000-mapping.dmp
  • memory/2568-147-0x0000000000000000-mapping.dmp
  • memory/2568-155-0x0000000000000000-mapping.dmp
  • memory/2696-140-0x0000000000000000-mapping.dmp
  • memory/2952-167-0x0000000000000000-mapping.dmp
  • memory/3100-138-0x0000000000000000-mapping.dmp
  • memory/3160-142-0x0000000000000000-mapping.dmp
  • memory/3340-154-0x0000000000000000-mapping.dmp
  • memory/4192-166-0x0000000000000000-mapping.dmp
  • memory/4204-146-0x0000000000000000-mapping.dmp
  • memory/4292-168-0x0000000000000000-mapping.dmp
  • memory/4388-144-0x0000000000000000-mapping.dmp
  • memory/4392-152-0x0000000000000000-mapping.dmp
  • memory/4512-145-0x0000000000000000-mapping.dmp
  • memory/4548-137-0x0000000000000000-mapping.dmp
  • memory/4592-134-0x0000000000000000-mapping.dmp
  • memory/4716-162-0x0000000000000000-mapping.dmp
  • memory/4788-165-0x0000000000000000-mapping.dmp
  • memory/4964-150-0x0000000000000000-mapping.dmp
  • memory/4968-156-0x0000000000000000-mapping.dmp
  • memory/5004-139-0x0000000000000000-mapping.dmp
  • memory/5020-164-0x0000000000000000-mapping.dmp